birds and bees

A little girl runs out to the backyard where her father is working, and asks him, "Daddy, what's sex?"
Her father sits her down, and tells her all about the birds and the bees. He tells her all about the conception process, and has a real tuff time of it, as his child is so young.
He covers a wide and varied assortment of sub topics and by the time he's finished, his daughter is somewhat awestruck with this sudden influx of bizarre new knowledge. Her father finally asks: "So what did you want to know about sex for?"
"Oh, mommy said to tell you lunch would be ready in a couple of secs..."